In 1994, a small-town piano tuner's perfect pitch led police to crack a decade-old murder when he recognized the unusual frequency of a victim's humming on a 911 call. But the real breakthrough came from what the killer didn't hear—and how one detective's unconventional partnership with a deaf witness finally brought justice to three families. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com

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